you can't eliminate them but ge on the forefront of imaging technology. maybe there is something for helmets. this is good for perception and reality. >> i think ultimately football survives or doesn't survive, based on the individuals who may be decide whether or not they are actually going to play. when football started, maybe we didn't know the consequences. now we are beginning to know the consequences. it is up to people if they are willing to take the money for risks they face down the road. i think we will see that over time. does football have to be as violent to be as attractive? i don't know. >> mothers will dictate the future of football, guaranteed. >> good point. >> good point. >> owner of cnbc's parent, nbc universal. >>> finally, beyonce. spectacular halftime show. we have to ask, did she cause the blackout? i know i add power surge. >> i think it is self evident. she walks into the room and shell suck up every ounce of energy pip never want to have to be in the same room as beyonce. >> wait she strutted on stage, that is just like michelle